Double-pipe automobile exhaust pipe

Abstract

The invention discloses a double-pipe automobile exhaust pipe. The double-pipe automobile exhaust pipe is characterized by comprising an exhaust pipe body, three-way catalysts are arranged at the air inlet ends of the exhaust pipe body, a bending part is arranged in the middle of the exhaust pipe body, and the three-way catalysts are arranged between the bending part and the air outlet ends of the exhaust pipe body; and backward flowing preventing devices are arranged at the air outlet ends of the exhaust pipe body, branch parts are arranged on the parts, on the rear side of the bending part, of the exhaust pipe body and provided with branch exhaust pipes, the branch exhaust pipes are provided with the three-way catalysts, and the backward flowing preventing devices are arranged at the air outlet ends of the branch exhaust pipes. To overcome the defects in the prior art, the double-pipe automobile exhaust pipe simple in structure, convenient to install and capable of effectively preventing backward flowing of an automobile is provided.

Description

Technical field [0001] The invention relates to a double-pipe automobile exhaust pipe. Background technique [0002] Automobile exhaust pipes are used to remove the exhaust gas after engine combustion. In use, because the usual automobile exhaust pipes are set at the bottom of the car, the lower exhaust pipes are located in rainy weather or road sections with water. The pipe can easily cause water to pour into the exhaust pipe, which can easily cause damage to the engine. At present, there is no effective device to solve the problem of automobile backflow prevention. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings in the prior art and provide a dual-pipe automobile exhaust pipe with simple structure, convenient installation, and effective prevention of automobile backflow. [0004] In order to achieve the above objectives, the present invention adopts the following solutions: [0005] A dual-pipe automobile exhaust pipe, which ...

AI Technical Summary

Problems solved by technology

[0002] The automobile exhaust pipe is to eliminate the exhaust gas after the combustion of the engine. In use, since the usual automobile exhaust pipe is installed at the bottom of the car, the exhaust pipe at a lower position should The pipe is very easy to cause water to flow back into the exhaust pipe, which is easy to cause engine damage

At present, there is no effective device to solve the problem of automobile anti-backflow

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